Hayward Perflex Perflex EC50

PUMP SELECTION

To power your Perflex filter, select a continuous duty pump

designed for swimming pool service.

The filter may be used

with a variety of Hayward bases and plumbing connections, or

with other suitable surfaces.

It is important to determine whether the pump will be located

above

or

below

the normal pool water line.

If the pump is going

above

the water line, a

self-priming

centrifugal pump must be

used.

Self-priming

pumps can lift water from a lower level and

prime automatically.

There is another type of pump simply

called the

centrifugal

.

Unlike

self-priming

centrifugals which

can lift water from a lower level, a centrifugal must be located

below

the water line for dependable priming.

Select a pump with an output rating of between 30 and 65

GPM (114-246 LPM).

Since 50 GPM (189 LPM) is the desired

maximum filter flow, a flow controller (part number EC1055) is

furnished with each unit for use with pumps rated between 40

and 65 GPM (151-246 LPM). Install the flow controller in the

filter body as illustrated

with an elbow adapter

(part number SP1105Z4)

or similar adapter. The

adapter

secures

the

controller in its proper

position.

FILTER LOCATION

Since plumbing fittings

offer a resistance to

water flow, locate the

filter as close to the

swimming

pool

as

practical.

Keep the number of fittings to a minimum.

Select

a well-drained area, one that will not flood when it rains.

Set the filter on a level platform or base.

Keep the filter

“BUMP” handle, drain outlet, and pressure gauge accessible

for convenient operation.

There is an alternate “BUMP”

handle location on the other side of the filter out

let.

Instructions for changing the handle position are covered

later.

Position the filter so the tank can drain by gravity.

PLUMBING

Use 1-1/2

”

flexible plastic pipe, or hose, joined with insert

fittings and stainless steel clamps.

If rigid pipe is used, be

sure to provide unions for easy servicing.

Ball-style control valves are recommended.

All plumbing connections on the EC50 filter are 1-1/2

”

N.P.T.

When making connections to the filter, use plastic male-end

adapters.

Apply three turns of Teflon tape or plastic pipe

sealant to the male threads.

IS50A-98

1.

2.

3.

1.

2.

3.

NOTE:

ANSI/NSPI-4 Article V, standard for above-ground and

on-ground pools, advises that components such as the

filtration system, pumps and heater be positioned so as to

prevent their being used as a means of access to the pool by

young children.

MODEL EC50 SERIES

The Perflex Model EC50 is a high performance swimming pool filter with a filtration rating of 3,000 gallons (11 KL)

per hour.

Manufactured from durable, corrosion-proof materials, it is designed for continuous operation, for

installation above or below the pool water line, and for fresh or salt water swimming pools.

The EC50 filter uses

diatomite filter powder (commonly called D.E.).

D.E. is the most efficient dirt remover known.

It is normally fed into

the system through the skimmer when the filter is initially started; then drained from the filter when its dirt holding

capacity has been reached.

Through Perflex’s exclusive “BUMP” action, the D.E. is periodically regenerated and

the filter cycle extended without changing the powder.

When the filter powder is totally used, the “BUMP” action

makes it possible to drain the used diatomite without backwashing or dismantling the filter.

Hayward Perflex Perflex EC50

Hayward Perflex Manual

Hayward Perflex manual content summary: